Which expression below is equivelent to (9x-4) 13(3x-2)?
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The magnification factor is given as 
. Therefore multiplying this by the spider's actual length will give its apparent length.
This gives an apparent length of 12,000 mm.
Since 1,000 mm = 1 m, this apparent length is also equivalent to 12 m.
Since 1,000 mm = 1 m, this apparent length is also equivalent to 12 m.